<template>
  <div class="dashboard-container">
    <div class="app-container">
      <!-- 靠右的按钮 -->
      <page-tools>
        <template v-slot:after>
          <el-button type="primary" size="small" @click="addPermission('0',1)">添加权限</el-button>
        </template>
      </page-tools>
      <!-- 表格 -->
      <el-table :data="list" border="" row-key="id">
        <el-table-column label="名称" prop="name" />
        <el-table-column label="标识" prop="code" />
        <el-table-column label="描述" prop="description" />
        <el-table-column label="操作">
          <template slot-scope="{ row }">
            <el-button v-if="row.type === 1" type="text" @click="addPermission(row.id, 2)">添加</el-button>
            <el-button type="text" @click="editPermission(row.id)">编辑</el-button>
            <el-button type="text" @click="delPermission(row)"> 删除</el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <!-- 新增/修改  权限 -->
    <el-dialog
      :title=" formData.id ? '修改权限':'新增权限' "
      :visible.sync="showDialog"
      width="50%"
      @close="btnCancel"
    >
      <!-- 表单 -->
      <el-form ref="perForm" :model="formData" :rules="rules" label-width="120px">
        <el-form-item label="权限名称" prop="name">
          <el-input v-model="formData.name" style="width:90%" />
        </el-form-item>
        <el-form-item label="权限标识" prop="code">
          <el-input v-model="formData.code" style="width:90%" />
        </el-form-item>
        <el-form-item label="权限描述">
          <el-input v-model="formData.description" style="width:90%" />
        </el-form-item>
        <el-form-item label="开启">
          <el-switch
            v-model="formData.enVisible"
            active-value="1"
            inactive-value="0"
          />
        </el-form-item>
      </el-form>

      <span slot="footer">
        <el-button size="small" @click="btnCancel">取消</el-button>
        <el-button size="small" type="primary" @click="btnOk">确定</el-button>
      </span>
    </el-dialog>

  </div>
</template>
<script>
import { getPermissionList, addPermission, updatePermission, delPermission, getPermissionDetail } from '@/api/permissions'
import { tranListToTreeData } from '@/utils'
export default {
  name: 'Permissions',
  data() {
    return {
      list: [], // 权限列表
      showDialog: false,
      // 表单数据对象
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型  1是菜单，2是按钮
        pid: '', // 父id
        enVisible: '0' // 开启
      },
      // 表单验证规则对象
      rules: {
        name: [{ required: true, message: '权限名称不能为空', trigger: 'blur' }],
        code: [{ required: true, message: '权限标识不能为空', trigger: 'blur' }]
      }
    }
  },
  created() {
    this.getPermissionList()
  },
  methods: {
    // 获取权限列表
    async  getPermissionList() {
      this.list = tranListToTreeData(await getPermissionList(), '0')
    },
    // 打开弹框
    addPermission(pid, type) {
      this.formData.pid = pid
      this.formData.type = type
      this.showDialog = true
    },
    // 提交事件
    async btnOk() {
      try {
        // 1. 主动校验
        await this.$refs.perForm.validate()
        // 2. 发送请求(添加或修改)
        if (this.formData.id) {
          // 修改
          await updatePermission(this.formData)
        } else {
          // 添加
          await addPermission(this.formData)
        }
        // 3. 成功提示
        this.$message.success('操作成功')
        // 4. 拉取列表
        this.getPermissionList()
        // 5. 重置
        this.showDialog = false
      } catch (error) {
        console.log(error)
      }
    },
    // 取消事件
    btnCancel() {
      this.formData = {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型  1是菜单，2是按钮
        pid: '', // 父id
        enVisible: '0' // 开启
      }
      this.showDialog = false
    },
    // 编辑事件
    async editPermission(id) {
      this.formData = await getPermissionDetail(id)
      this.showDialog = true
    },
    // 删除事件
    async delPermission(row) {
      // 如果该权限下有子级就不允许删除，必须先删除子级
      if (row.children && row.children.length) return this.$message.warning('该权限下有子级')
      try {
        await this.$confirm('确定删除吗？')
        await delPermission(row.id)
        this.$message.success('删除成功')
        this.getPermissionList()
      } catch (error) {
        console.log(error)
      }
    }
  }
}
</script>

<style>

</style>
